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Geiss GK, Bumgarner RE, An MC, Agy MB, van 't Wout AB, Hammersmark E, Carter VS, Upchurch D, Mullins JI, Katze MG.Geiss GK, et al. Among authors: mullins ji.Virology. 2000 Jan 5;266(1):8-16. doi: 10.1006/viro.1999.0044.Virology. 2000.PMID: 10612655Free article.